At some point last year, I think when my phone updated to windows 7.5 (Mango) my RNS-E/DIS/Bluetooth started dialling 121 (for Vodafone) and then reading out text messages I received. I thought it was just about the most amazing thing of all time until yesterday, after the car had been in for a service on Thursday, I noticed the menu for the service had changed and I now had/have the option to "Reply" to messages I get. It beeps and I can dictate my message, before it reads it back to me to check. I don't know how to put in punctuatuion, but it's still pretty amazing. To me, anyway.
Don't need help or anything, basically just showing off/singing Audi's praise for making me smile on the way to work.